Finding the Fourth Proportional to 37,718.32, 56,554.16 and 12,756

Step by Step Solution

1. Step 1: Write the proportion equation
   37,718.32 : 56,554.16 = 12,756 : x
2. Step 2: Convert to fraction form
   37,718.32/56,554.16 = 12,756/x
3. Step 3: Cross multiply
   37,718.32x = 56,554.16 × 12,756
4. Step 4: Simplify right side
   37,718.32x = 721,404,864.96
5. Step 5: Solve for x
   x = 721,404,864.96/37,718.32
6. Step 6: Final answer
   x = 19,126.11